Guigang Lime Plant: What are the standards for food grade calcium hydroxide?

Guigang Lime Factory: The main component of edible processing coating calcium hydroxide is lime, which is processed and extracted to remove harmful substances such as heavy metals

1、 Molecular formula: Ca（OH)2

2、 Molecular weight: 74.096

3、 Physical and chemical properties: Soft and simple black powder, density 2.24, stacking capacity 0.6-0.8. After 500 ℃, it loses bound water and becomes calcium oxide. It absorbs oxygen from the air and becomes calcium carbonate, which is soluble in acid, slightly soluble in water, and insoluble in alcohol.

Food grade calcium hydroxide

4、 Characteristics: High activity, loose structure, high purity (up to analytical purity), good whiteness, fine fineness, and low impurity concentration.

5、 Usage: This product is widely used in the synthesis of pharmaceuticals and food additives, the synthesis of high-tech biomaterial HA, the synthesis of VC phosphate esters as feed additives, the synthesis of konjac and calcium agents in food, as well as additives in the sugar industry such as calcium cyclamate, calcium lactate, and calcium citrate, water treatment, and the synthesis of other organic chemicals. Used for making bleaching powder, testing CO2 and carbon dioxide, as a softening agent for hard water, to improve the alkalinity of sediment, as an antioxidant for food, as a disinfectant and clarifying agent for tap water, and in the construction industry

Guigang Lime Plant: Food Additive (Calcium Hydroxide) Index:

Inspection method for project indicators (excellent) and indicators (first-class);

Calcium hydroxide Ca (OH) 2% ≥ 98.0 96.0 titration method;

Hydrochloric acid insoluble matter% ≤ 0.2, 0.2 weight method;

Heavy metal (calculated as Pb)% ≤ 0.002 0.002 colorimetric method;

Arsenic% ≤ 0.0005 0.0005 arsenic spot method.

Food grade calcium hydroxide

Guigang Lime Plant: Calcium hydroxide is a red powdery solid, also known as hydrated lime, with an alkaline taste and a slight sweet taste. Food grade calcium hydroxide is a soft and simple black powder with a density of 2.24 and a bulk density of 0.5-0.8; 5800C loses its crystalline water and becomes calcium oxide. When exposed to air, it gradually absorbs oxygen to form calcium bicarbonate, which is soluble in acid, slightly soluble in water, and insoluble in alcohol. Compared to industrial grade calcium hydroxide, food grade calcium hydroxide products require higher standards by removing harmful substances such as metals from the calcium hydroxide through a series of extraction processes to meet food grade standards.

Food grade calcium hydroxide, due to its high product quality standards, can be used not only in the field of food additives, but also in pharmaceuticals, feed additives, biomaterial synthesis, and other fields. With the continuous development of the food industry, the application fields of food grade calcium hydroxide are also constantly expanding, widely used in the synthesis of dairy salt regulators, pharmaceutical intermediates, high-tech biomaterials HA, feed additives VC phosphates, calcium cycloalkanoate, calcium lactate, calcium citrate, and the preparation of food konjac.

Calcium hydroxide should be packaged in plastic woven bags lined with polyethylene plastic film bags, with a net weight of 25kg per bag. It should be stored in a dry warehouse. Take strict precautions against stuffiness and heat. Avoid co storage and transportation with acidic substances. Rainproof measures should be taken during transportation. When a fire breaks out, it can be extinguished with water, sand, or a regular fire extinguisher.

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